1/*
2 * Copyright 2010, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef BCC_SOURCEINFO_H
18#define BCC_SOURCEINFO_H
19
20#include "Config.h"
21
22#include <llvm/ADT/OwningPtr.h>
23#include <llvm/Module.h>
24
25#include <stddef.h>
26
27namespace bcc {
28  class ScriptCompiled;
29
30  namespace SourceKind {
31    enum SourceType {
32      File,
33      Buffer,
34      Module,
35    };
36  }
37
38  class SourceInfo {
39  private:
40    SourceKind::SourceType type;
41
42    llvm::OwningPtr<llvm::Module> module;
43    // Note: module should not be a part of union.  Since, we are going to
44    // use module to store the pointer to parsed bitcode.
45
46    union {
47      struct {
48        char const *resName;
49        char const *bitcode;
50        size_t bitcodeSize;
51      } buffer;
52
53      struct {
54        char const *path;
55      } file;
56    };
57
58    unsigned long flags;
59
60#if USE_CACHE
61    unsigned char sha1[20];
62#endif
63
64  private:
65    SourceInfo() { }
66
67  public:
68    static SourceInfo *createFromBuffer(char const *resName,
69                                        char const *bitcode,
70                                        size_t bitcodeSize,
71                                        unsigned long flags);
72
73    static SourceInfo *createFromFile(char const *path,
74                                      unsigned long flags);
75
76    static SourceInfo *createFromModule(llvm::Module *module,
77                                        unsigned long flags);
78
79    llvm::Module *takeModule() {
80      return module.take();
81    }
82
83    llvm::Module *getModule() const {
84      return module.get();
85    }
86
87    int prepareModule(ScriptCompiled *);
88
89#if USE_CACHE
90    template <typename T> void introDependency(T &checker);
91#endif
92  };
93
94
95} // namespace bcc
96
97#endif // BCC_SOURCEINFO_H
98